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4.2.2
Sockets
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Fig.2. Arrangement of sockets in MPU-1.
CAUTION!
MPU-1 signaller is designed to measure the current flowing through the clamps with phase
voltages up to 1000V.
Connecting voltage higher than 25V, between any of the test terminals may damage the
device.
7 Measuring socket [Clamp (1) / Charger]
The socket for connecting Sonel measuring clamps of F-Series (Rogowski coil), used for measurements
with single clamps or for connecting the battery charger. Unused socket should be secured with a flexible socket plug.
8 Measuring [Clamp (2)]
The socket for connecting Sonel measuring clamps of F-Series (Rogowski coil), used for measurements
with double clamps. Unused socket should be secured with a flexible socket plug.
The device sums up current values from the two sockets, it is the mathematical sum (it does not
take into account the phase shifts).
OPERATING MANUAL MPU-1 version 1.4
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